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A study on the crop ecological and agronomical factors that cause growing yield gap between Japanese and US soybean production

Research Project

Project/Area Number 20405021
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section海外学術
Research Field Crop science/Weed science
Research InstitutionKyoto University

Principal Investigator

SHIRAIWA Tatsuhiko  Kyoto University, 大学院・農学研究科, 教授 (30154363)

Co-Investigator(Kenkyū-buntansha) YOSHIHIRA Taiki  酪農学園大学, 酪農学部, 教授 (50240346)
TANAKA Tomoyuki  京都大学, 大学院・農学研究科, 准教授 (50224473)
HOMMA Koki  京都大学, 大学院・農学研究科, 助教 (60397560)
KATSURA Keisuke  京都大学, 大学院・農学研究科, 助教 (20432338)
Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥13,000,000 (Direct Cost: ¥10,000,000、Indirect Cost: ¥3,000,000)
Fiscal Year 2010: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2009: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2008: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Keywordsダイズ / 収量 / 気象 / 多収性 / 栽培技術
Research Abstract

The factors for the growing yield gap between Japanese and US soybean production were analyzed in reference to meteorological resources, genetic potential of cultivars and development of crop management technologies. Meteorologically determined yield limit in USA was higher in USA than in Japan by higher solar radiation, while the trend of yield increase in USA was attributed to technological development. US cultivars showed consistently greater yield than Japanese ones and the difference was resulted from different dry matter productivity. The US cvs. exhibited high leaf stomatal conductance to gas exchange as compared to Japanese cvs. and this seemed a reason for the greater dry matter productivity in the US cvs.. Based on the field surveys, it was considered that the contribution of genetic improvement was relatively greater in the midwest region, which the contribution of crop management was greater in the midsouth and south regions.

Report

(4 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (12 results)

All 2011 2010 2009

All Journal Article (7 results) (of which Peer Reviewed: 7 results) Presentation (5 results)

  • [Journal Article] ダイズ単収の日米地域差の拡大要因に関する作物学的調査-視察報告(第2回)米国における圃場・作物管理-2011

    • Author(s)
      白岩立彦・桂圭佑・島田信二・川崎洋平・村田資治・本間香貴・義平大樹・田中朋之・田中佑
    • Journal Title

      作物研究 56(印刷中)

    • NAID

      110008711280

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] ダイズ単収の日米地域差の拡大要因に関する作物学的調査-視察報告(第2回)米国における圃場・作物管理-2011

    • Author(s)
      白岩立彦・桂圭佑・島田信二・川崎洋平・村田資治・本間香貴・義平大樹・田中朋之・田中佑
    • Journal Title

      近畿作物育種研究

      Volume: 56(印刷中)

    • NAID

      110008711280

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Variability of leaf morphology and stomatal conductance in soybean [Glycine max (L.) Merr.] cultivars.2010

    • Author(s)
      Tanaka Y., Fujii K., Shiraiwa T.
    • Journal Title

      Crop Sci. 50

      Pages: 2525-2532

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] ダイズ単収の日米地域差の拡大要因に関する作物学的調査.-米国における視察報告(第1回)2010

    • Author(s)
      桂圭佑・義平大樹・本間香貴・L.C.Purcell・田中朋之・白岩立彦
    • Journal Title

      作物研究 54

      Pages: 149-154

    • NAID

      120005761420

    • Related Report
      2010 Final Research Report 2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Variability of leaf morphology and stomatal conductance in soybean [Glycine max (L.) Merr.] cultivars2010

    • Author(s)
      Tanaka, Y., Fujii, K., Shiraiwa, T.
    • Journal Title

      Crop Science

      Volume: 50 Pages: 2525-2532

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 水稲群落を基準とした群落表面温度の計測による転換畑ダイズ圃場の水ストレス評価2009

    • Author(s)
      本間香貴・白岩立彦
    • Journal Title

      日本作物学会紀事 78

      Pages: 387-394

    • NAID

      10025945923

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Stem growth habit affects leaf morphology and gas exchange traits in soybean2009

    • Author(s)
      Tanaka, Y., Shiraiwa, T.
    • Journal Title

      Annals of Botany 104

      Pages: 1293-1299

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] 異なる栽植密度条件下の分枝特性における日米ダイズ品種間の比較2011

    • Author(s)
      義平大樹, (他4名)
    • Organizer
      第230回日本作物学会講演会
    • Place of Presentation
      日東京農業大学
    • Year and Date
      2011-03-31
    • Related Report
      2010 Final Research Report
  • [Presentation] 異なる栽植密度条件下の分枝特性における日米ダイズ品種間の比較2011

    • Author(s)
      義平大樹・田中逸美・最首祐一・小阪進一・白岩立彦
    • Organizer
      第230回日本作物学会講演会
    • Place of Presentation
      東京農業大学
    • Year and Date
      2011-03-31
    • Related Report
      2010 Annual Research Report
  • [Presentation] ダイズの収量および乾物生産性における日米品種間差異-暖地における比較-2010

    • Author(s)
      川崎洋平, ら, (他6名)
    • Organizer
      第230回日本作物学会講演会
    • Place of Presentation
      北海道大学農学
    • Year and Date
      2010-09-05
    • Related Report
      2010 Final Research Report
  • [Presentation] ダイズの収量および乾物生産性における日米品種間差異-北海道中央部における比較-2010

    • Author(s)
      義平大樹, ら, (他2名)
    • Organizer
      第230回日本作物学会講演会
    • Place of Presentation
      北海道大学農学部
    • Year and Date
      2010-09-05
    • Related Report
      2010 Annual Research Report 2010 Final Research Report
  • [Presentation] ダイズの収量および乾物生産性における日米品種間差異-暖地における比較-2010

    • Author(s)
      川崎洋平, 田中佑, 桂圭佑, Larry C.Purcell, 本間香貴, 田中朋之, 白岩立彦
    • Organizer
      第230回日本作物学会講演会
    • Place of Presentation
      北海道大学農学部
    • Year and Date
      2010-09-05
    • Related Report
      2010 Annual Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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